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1 | #ifndef _LINUX_TIMEKEEPING_H |
2 | #define _LINUX_TIMEKEEPING_H | |
3 | ||
4 | /* Included from linux/ktime.h */ | |
5 | ||
6 | void timekeeping_init(void); | |
7 | extern int timekeeping_suspended; | |
8 | ||
9 | /* | |
10 | * Get and set timeofday | |
11 | */ | |
12 | extern void do_gettimeofday(struct timeval *tv); | |
13 | extern int do_settimeofday(const struct timespec *tv); | |
14 | extern int do_sys_settimeofday(const struct timespec *tv, | |
15 | const struct timezone *tz); | |
16 | ||
17 | /* | |
18 | * Kernel time accessors | |
19 | */ | |
20 | unsigned long get_seconds(void); | |
21 | struct timespec current_kernel_time(void); | |
22 | /* does not take xtime_lock */ | |
23 | struct timespec __current_kernel_time(void); | |
24 | ||
25 | /* | |
26 | * timespec based interfaces | |
27 | */ | |
28 | struct timespec get_monotonic_coarse(void); | |
29 | extern void getrawmonotonic(struct timespec *ts); | |
30 | extern void monotonic_to_bootbased(struct timespec *ts); | |
31 | extern void get_monotonic_boottime(struct timespec *ts); | |
32 | extern void ktime_get_ts(struct timespec *ts); | |
33 | ||
34 | extern int __getnstimeofday(struct timespec *tv); | |
35 | extern void getnstimeofday(struct timespec *tv); | |
36 | extern void getboottime(struct timespec *ts); | |
37 | ||
38 | #define do_posix_clock_monotonic_gettime(ts) ktime_get_ts(ts) | |
39 | #define ktime_get_real_ts(ts) getnstimeofday(ts) | |
40 | ||
41 | ||
42 | /* | |
43 | * ktime_t based interfaces | |
44 | */ | |
45 | extern ktime_t ktime_get(void); | |
46 | extern ktime_t ktime_get_real(void); | |
47 | extern ktime_t ktime_get_boottime(void); | |
48 | extern ktime_t ktime_get_monotonic_offset(void); | |
49 | extern ktime_t ktime_get_clocktai(void); | |
50 | ||
51 | /* | |
52 | * RTC specific | |
53 | */ | |
54 | extern void timekeeping_inject_sleeptime(struct timespec *delta); | |
55 | ||
56 | /* | |
57 | * PPS accessor | |
58 | */ | |
59 | extern void getnstime_raw_and_real(struct timespec *ts_raw, | |
60 | struct timespec *ts_real); | |
61 | ||
62 | /* | |
63 | * Persistent clock related interfaces | |
64 | */ | |
65 | extern bool persistent_clock_exist; | |
66 | extern int persistent_clock_is_local; | |
67 | ||
68 | static inline bool has_persistent_clock(void) | |
69 | { | |
70 | return persistent_clock_exist; | |
71 | } | |
72 | ||
73 | extern void read_persistent_clock(struct timespec *ts); | |
74 | extern void read_boot_clock(struct timespec *ts); | |
75 | extern int update_persistent_clock(struct timespec now); | |
76 | ||
77 | ||
78 | #endif |